Digital 1-Wire temperature sensor in a surface-mounted housing for outdoor use and harsh environments

The ATF-1 enables precise and inexpensive temperature measurements with minimum cabling requirements in outdoor applications, in damp rooms and other harsh environments.


In a robust IP65 housing, the ATF-1 offers simple and precise acquisition and interference-free digital data transmission of temperature values in outdoor areas, damp rooms and other harsh environments via the 1-Wire bus system. No calibration is necessary. Simple wiring of several probes in series, ring (not closed), star or tree with only two, optionally 3 wires

Technical Data

  • 2 / 3-wire connection (Data, GND, VDD) to 1-wire bus
  • Measuring range: -55 ... +85 °C
  • Resolution: programmable 9 - 12 bits (0.5 °C ... 0.0625 °C)
  • Accuracy: +/- 0.5 °C (-10 °C ... +70 °C)
  • Sensor element: DS18B20+

Mechanical data

  • housing: plastic, material polyamide, 30% glass ball reinforced
  • Colour: pure white, (similar to RAL 9010)
  • electrical connection: 0,14-1,5mm via screw terminals on PCB
  • Protection class: IP20 (according to EN 60529).
  • Cable gland: M16, with strain relief
  • Protection class: IP65 (according to EN 60529).
  • Dimensions: 72 x 64 x 39,4 mm